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Note 9 - Borrowings (Details Textual) - Regions Bank and PNC Bank N.A. [Member] - Revolving Credit Facility [Member] - USD ($)
$ in Thousands
Mar. 30, 2020
Sep. 30, 2023
Dec. 31, 2022
Line of Credit Facility, Expiration Period (Year) 5 years    
Line of Credit Facility, Maximum Borrowing Capacity $ 100,000    
Line of Credit Facility Sublimit for Letters of Credit 30,000    
Line of Credit Facility Swingline Loans $ 15,000    
Long-Term Line of Credit, Total   $ 0 $ 0